General

Engineer's Note

This VLP RDIMM is engineered for server platforms, where its registered signaling and ECC ensure robust data integrity in memory-intensive workloads like virtualization and in-memory databases. The dual-rank x8 configuration at 1.35V maximizes memory density and bandwidth efficiency, making it an ideal choice for dense rack deployments requiring low power and high reliability.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit errors in real time, safeguarding financial transactions and virtualization workloads from silent data corruption that could otherwise crash critical services.

2. Registered signal buffering stabilizes command and address lines under heavy DIMM population, enabling dense server configurations to sustain reliable operation when every memory slot is fully utilized.

3. VLP RDIMM form factor minimizes vertical clearance in rack-optimized servers, allowing unrestricted airflow across tightly packed compute nodes to prevent thermal throttling during sustained peak loads.

4. Dual Rank x8 organization enables rank interleaving that maximizes DDR3 channel utilization, delivering consistent memory bandwidth for concurrent database queries and multi-tenant cloud instances.

5. 1.35V low-voltage operation trims overall server power draw and corresponding cooling demand, directly lowering energy expenditure in large-scale data center deployments without sacrificing signal integrity.

Why These Specs Matter

The M392B1G73BH0-YK0 is a server-grade DDR3 VLP RDIMM, purpose-built for enterprise environments where stability and uptime define profitability. In a virtualized cluster hosting dozens of VMs, its registered signal buffering is non-negotiable: it decouples the electrical load from the memory controller, allowing you to populate all channels with high-density DIMMs without sacrificing signal integrity. This directly enables the 256 GB or larger footprints that hypervisors like VMware ESXi demand. Meanwhile, integrated ECC error correction silently catches and fixes single-bit flips caused by background radiation—a silent data corruption that, in an in-memory database such as SAP HANA or Redis, could instantly poison financial transactions or analytics. That protection transforms memory from a potential liability into a trusted repository. The 1.35 V low-voltage operation compounds these benefits across a data center: for a rack of fifty servers, the cumulative power savings lower both electricity draw and HVAC strain, directly shrinking your OpEx. Finally, the dual-rank x8 organization interleaves access across internal banks, delivering measurably higher sustained bandwidth under the random, concurrent I/O bursts typical of database joins and multi-tenant workloads. This isn’t just about compliance with CE or RoHS; it’s about ensuring every transaction remains accurate, every VM stays responsive, and every watt counts.

Endurance & Reliability

General Virtualization
This 8GB DDR3-1600 registered ECC VLP RDIMM is ideal for dense virtualization hosts running hypervisors like ESXi or Proxmox. For moderate consolidation of 10–15 light VMs, populate six to eight modules per CPU socket for a balanced 48–64GB capacity, taking advantage of the registered buffer to maintain signal integrity. The low 1.35V operation reduces power draw across dozens of modules in a fully loaded 2U server.

In-Memory Database
When deploying Redis, Memcached, or in-memory OLTP engines, latency and data integrity are paramount. Fill all available DIMM slots with these dual-rank x8 RDIMMs to maximize capacity per channel while leveraging ECC to prevent silent data corruption. A target of 128–256GB across 16–32 modules ensures large datasets reside entirely in RAM, and the 1600MHz speed keeps response times low under heavy read/write workloads.

High-Performance Computing
For HPC clusters running MPI-based simulations, memory bandwidth and reliability drive node design. Install one module per channel in a balanced configuration across all memory controllers to sustain peak bandwidth. ECC and registered signaling guard against soft errors during multi-day runs, while the very-low-profile form factor improves airflow in blade enclosures, allowing dense packing without thermal throttling.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, Lenovo System x3650 M4, and similar DDR3 Registered platforms.

FAQ